Query about question "A teacher brought a bag of candy..." [17]

https://www.gregmat.com/problems/quant?problem=a-teacher-brought-a-bag-of-candy


In the question it has been mentioned that n is greater than 13.
Hence you cant take n as 1 …and total candies as 24 or 37 or…
Please check the answer explanation in the video.
It’s incorrect.

n is the total number of candies.